This is ridiculous and amazing. Even though you’re just exploiting a glitch, your presentation makes it feel as if you’re discovering a whole untapped area of science in the Kerbol system. The ways you did these pseudo-scientific method experiments with the probes made it a joy to watch.
In a sense, it was science, just in a different universe which doesn't matter so much to us. But I'm getting into philosophy, I guess, and there's no end to that. :)
"Fifteen hundred years ago everybody knew the Duna was red. Five hundred years ago, everybody knew Duna was flat, and fifteen minutes ago, you knew that Duna has no underground. Imagine what you'll know tomorrow." Agent K. to Agent J., Men in Green, 1997
To this day I remember my first time playing KSP. Or rather the frustration I had when all my plans fell apart and I completely failed to get anything working, let alone into orbit. But also the exhilarating feeling when, after I grudgingly had consumed some tutorials and howtos, I managed to get my first ship to orbit.
My biggest dopamine overdose was when I rendezvoused and docked for the first time. I’ve had KSP for almost a decade but I would usually stop playing for months after visiting a planet. I pretty much ignored the whole rendezvous aspect of the game for 5+ years. It’s kind of sad that I don’t even think about it anymore, but being able to do this makes the game way more fun.
I have a tendency to take on overly ambitious goals, but on the occasions I manage to reach them, it's great! :D My orbital refuelling infrastructure has been the source of several rushes, beginning with my first effective mining lander.
17:11 dear god, it’s Brittle Hollow As a follow-up to this idea, I’d love to see either a lone probe core with cheats reaching the singularity (no joints means it takes longer for the kraken to strike), or orbiting the singularity on a body like Tylo where drag isn’t a problem
I think the Alt-F12 cheats change a craft's state, but it would be interesting to look into exploiting the easing to ground feature. If you cheat a vessel onto/into water, it won't automatically stop easing to ground. That only stops when it touches ground, or if you click the button to stop it. You can close the cheat window without clicking the button.
@@alexsiemers7898 ah! then yes, but... i don't think you'd get closer to the singularity without air resistance, unless... hmm..if you dropped straight down with no sideways thrust, you'd go straight through it, wouldn't you? at least, i imagine you would, with an orbit of perhaps infinite eccentricity, otherwise known as a straight line. though i don't know if some coriolis force might come into play.
I did NOT expect to see a craft descending into singularity in KSP Edit: I DID NOT expect to see a craft orbiting singularity inside a planet in KSP WOW Edit №2: This is the 2nd time when Stratzenblitz demonstrated that the laws of general relativity don't apply to the game
@@wChris_ That's right. I wonder if it would be even possible to implement in the game an object for which newtonian physics are not enough, like a neutron star.
Had stuff glitch trough the Mun surface a a few times, one time even an rover at the north pole. You can get some idiotic speed this way, KSP calculate physic every .05 milliseconds or 20 times a second. So if you get very close to the singularity you get an insane acceleration and the next time you will be far away as in out in space again. But you are moving over the surface so you can not stay on craft.
@user There is a mini game that was produced by a team of college students as a project, which heavily exaggerates relativity in a first person walking environment. So it is definitely possible. The newtonian physics of KSP also limits most problems to 2 body problems, with hard hand offs between spheres of influence. This makes things like Lagrange points and heliosynchronous orbits impossible, because they rely on 3 or more bodies to function properly. One of the only space sims I know that even attempts multibody problems is Children Of A Dead Earth (good game imo).
@@hatman4818 Well there is the Principia mod which basically turns the game into an N-body physics simulation. This version of KSP is really hard and resource intensive, i can understand why they did not choose to do that.
Thank you so much for investigating this and making it so easy to understand! Not only is this glitch exploitation really hilarious, but it actually seems really useful for constructing underground infrastructure. I'm already thinking of how I could use this in my cinematics - creating an underground section of base and then masking away the background would make for some awesome shots.
I wonder if it would be possible to build a shell around the “singularity” of parts docked just above destruction range to contain this obvious threat to the solar system
@@Stratzenblitz75 In this one you reached ~4.3km above the planet's core I believe before breaking up, which is 1.3% of Duna's radius. If the gravity mechanics scale with planet size, if gravity is sustainable at 1.3% of a body's radius, on Minmus this radius would be 403 meters, and on Gilly it would be just 175 meters. I reckon a circular base like that would be possible, right? With a diameter of 350 meters?
The reality of the kerbol system is frightening, but an inevitable and great leap in kerbalkinds scientific accomplishment, spearheaded by its best engineering minds. Excellent video.
I never thought someone could consistently surprise me that much every single time. You are a true master of your craft, weeks and months of work packed neatly into a 20 minute video that's engaging from its first to its last second. I really applaud the effort and work you put into this and it's another wonderful pice of art
Recently had some issues with a gilly lander that would bounce up on loading and end up flying in a 'landed' state, which had some weird consequences. Also, some of my favorite glitch videos involve messing with states, like "landed" on modern jool or "on the launch pad" at the surface of the sun X3 Glad to see you exploring their potential!
@@eekee6034 I think it might've been a Danny2462 or nexters lab vid, but I can't find it for the life of me. What I recall is that he somehow found a way to glitch a launch clamp holding a craft onto the sun, which enabled the state, and let him collect invalid science experiements.
The most mind-blowing thing to me is that last part is somewhat... Real! There are black holes, there are things orbiting it at that speeds and heights, even the IMMENSE heating of that shield - this is just what an accretion disk is
I feel a black hole in atmosphere would not... well, the black hole would be fine, it'd last for as long as they usually do. But, nothing else would. Any accumulated atmosphere one does have would be largely temporary. The absurd density present in black holes does mean they can cause ridiculous increases in other phenomena, and it is so very interesting to see. All gravity does the things associated with black holes, but theirs is so strong that phenomena which can't be easily observed elsewhere are trivial to find.
@@O5MO Uhh, no, they are not completely different. The game simplifies a planet's gravity to a single point, which is literally exactly what a singularity is. All the planets are quite literally singularities with a hollow shell. The immense heat from orbiting is also almost the same, friction through the singularity's accumulated "atmosphere" vs friction through the singularity's simulated atmosphere it shares with the planet above. But they are both due to the singularity's steep gravity gradient causing incredibly high speeds through medium. I don't know why you think they are "completely different".
@@Wasabiofip i didnt say they are completely diffrent. In fact, i said they are similar. The reasons they work this way are completely diffrent though, well, maybe apart from singularity, because KSP planets do in fact have singularities in them. But atmosphere, heat and other things are very diffrent.
Way back in the early KSP days I did the calculations and figured out that for KSP planets to work, they had to have a condensed matter core --- their mass is anomalously high for their radius. But I wasn't expecting this! Given a mass of 4.5×10^21 kg, the event horizon of the Duna black hole should be about 14µm across, so sadly your probe was nowhere near it. I did do the calculation and assuming I've got it right, at 5000m above the black hole you're seeing a tidal acceleration of about 10m/s^2 over the width of your probe; I estimate it to be about two metres across. That's only about 1g, so I don't think the probe exploded due to tidal disruption. If you saw sudden unexpected heating, you could have passed through one of the polar jets. Clearly the next thing we need is a mod which adds proper rendering for a black hole. It'd be epic. **Edit:** fixed black hole diameter which was a factor of 1000 out. **Edit:** put it back again because it wasn't.
Lol, I love the polar jet theory. And heck yea, proper black hole rendering for black holes would be awesome. I wonder, since the even horizon is so small though, could you even see the distortion?
@@Stratzenblitz75 If you're going for realism (lol) then you're going to run into problems due to an entire planet's weight of atmosphere making it surrounded by a shell of pressure-hardened solid carbon dioxide, so let's just assume that Duna contains a partial vacuum. The black hole itself is probably invisible but debris raining down from the surface would most likely form an accretion disc. I can't find any references for accretion discs in very small black holes, but it seems plausible that you'd get one. Duna's rotating, so any falling matter will have the same angular momentum. The density spike as this all gets compressed near the black hole would produce a spinning plasma cloud that _should_ form a glowing accretion disc. I did the calculation for Hawking radiation and assuming I got this right it's glowing at 38K... which isn't a lot, so that won't be contributing. I think it all depends on how porous Duna's surface is.
Fantastic work! I wonder, What if you do this on an airless body like the mun or tylo and burn your engines near the center? Could you use the oberth effect to give you enough speed to punch back up through the ground without the game registering the collision? My thoughts are that if you could make a quick burn near the singularity you could in theory come out at a significant percentage of light speed. If it’s going fast enough the games frame rate will allow a craft to pass through the terrain without registering a collision since the craft has to be inside the terrain during a frame to do that. From there head to the stars?
Hey Cody! I've tried this with airless worlds, and yes, you can get really close to the singularity. However, at that point the simulation starts breaking down and you get a ton of free velocity from the integration errors. I'm working on a follow up video to explore this further!
This felt like it was planned by NASA. I love all the "useless" redundancies that you included in the base that would probably be fully necessary in real life (but are obsolete with quicksaving).
Stratzenblitz in 2021: I broke KSP physics to build ramps for my bridge Stratzenblitz 2022: I broke KSP physics to discover the forbidden truth of Duna
I guess my question is, how about a Kerbin sub to its core? How does water behave as you go deeper? Does it get more dense and give your craft more bouyancy? And does bouyancy help with approaching the core? Also, could bendy tech somehow be used to go deeper into Jool? This was an awesome video. It makes sense to me why they simply programmed gravity as singularities, in theory, you should never be able to go below the surface, and modelling a point mass is so much easier than a distributed mass.
That's a great idea, I hadn't thought about using buoyancy. Theoretically, that should allow you to approach much closer to the core (as long as the physics engine behaves itself). Thanks for the idea, I'll need to try it!
As I understand it they can't really because of the way planet meshes are made. They base it on a single altitude value, so there's no way to layer stuff in without using scenery objects placed on top. Not to say they couldn't figure something out but it's unlikely.
@@maxv9464 There's a mod that does add small caves they could add caves as structures, rather than terrain it wouldn't really go under ground, but would still be cool to explore
Man I can't believe the planet Duna from the 2011 space exploration video game Kerbal Space Program™ is actually the planet Brittle Hollow from the 2019 adventure-puzzle space video game Outer Wilds™. That's crazy.
same. the moment I realized there was a black hole in the middle of the planet, and then he says 'theres a black hole, lets go investigate it', was spooky
This feels like one of those hacking explanation videos: getting a normally impossible result from a program reliably, by combining different steps to get around limitations/checks, and learning about more and more implementation details in the process xD
*Mission assignment notice.* _Next mission suggestion:_ After viewing your discovery of the black hole centers of the Kerbal system's unique hollow planets, we have garnished a question regarding the composition of its sun, and whether or not it may follow this very same example. Our inquiry would involve the creation of a "bendy physics" craft that could survive on and interact with the sun, and the creation of exploratory crafts to see the inside of the sun. We look forwards to seeing your future discoveries. Sincerely - Omega Research Corporation.
Impressive, as usual. Not only the creative questioning of the game's boundaries, but the engineering genious to actually boldly go where no man..... and so on.
The music in this video instantly reminded me of your Jool 5 infinity video. That video is still one my favourites you made after all these years. Thank you for making it and others, and this video of course!
This makes incredible amounts of sense and yet is absolutely amazing. Gotta love this game and what you can do with it, everytime I think this game has nothing more to give you prove me dead wrong
Man, this is absolutely amazing. I've been playing ksp from the earliest days and I never expected that something like this is possible. My mind is blown.
Haha, YT directed me to this video straight from Orion splashdown livestream. Not even mad. I wonder how many people got sent here the same way ^^. As for the video, KSP was out for what? 11 years now. And people still find new cool things to do in it. Hats off to you. That took a lot of effort to prototype, dessing and execute.
There's a gap at Eve's South Pole where you can just boat into the "underworld". It seems the "splashed down" state is what kept me alive. But I never imagined all the "science" you applied here. Amazing as always!
Thanks! I knew about the gap in Eve's south pole and I have tried to fly through it (without success). Never thought about boating into it though: nice work finding that!
What's even more striking is that the way you see the "planet" and the sky as you approach the center is eerily similar to how you would see a (supermassive) black hole as you get closer to it. Once you hit the event horizon, the black hole will actually appear "in front" of you (if you were going straight towards it), barely taking half of your entire 360 view. This is because of insane light aberration mixed with the diffraction of light, all the light is coming from the direction you are going at, so when you hit the event horizon the black hole will still appear "in front" of you, as if you never even entered it. It's only when you get close to the singularity that the black hole takes half of your entire view, but by then you've probably been spaghettified into a string of molecules (molecules wouldn't be taken apart by gravity because gravity is much weaker than the electromagnetic force on a molecular scale, even a black hole can't take apart a molecule, and even less an atom because of the strong force). This is fascinating.
Space, Sky, Surface, Seas, and Strata. The five wonders of KSP finally tackled. Edit: All planets act like that, once you go below the surface collider, there’s nothing else down there. In Kerbin, Eve, and Laythe’s case, its an infinite ocean.
I remember exploring undergrounds back in 2012-2014, when there were so many gaps in the mapping of planets that you could land basically anywhere and would find a gap. Most of them was actually tiny but some were big enough for kerbals or even small crafts to fit in. There was also especailly a lot of these on Minmus for some reason. It was kinda fun to drop inside of them and try to get out without touching the surface or you'll instantly die or crash.
This is fascinating - and well researched and executed. The next obvious question to me relates to landing leg/wheel kraken drives and to use this to determine whether their power levels scale proportionally to the increase in gravity: if so then they might offer an ability to descend more smoothly even closer towards the core (or else may just spontaneously explode from the internal pressures!).
Nuclear power & bombs exploit a real-life physics bug. ;) Quantum tunnelling looks just like a bug because particles do stuff at far lower energy levels than they should be capable of.
@Abraham Johnathan Yes indeed! :) I believe in a Creator, and, well, there's this scripture: "He has made everything beautiful in its time. He has even put eternity in their heart; yet mankind will never find out the work that the true God has made from start to finish." -- Ecclesiastes 3:11 In a sense, science will never end.
Ok, insane as always, but I need to know... could you theoretically use a mining drill on a flying craft down there, since the drill head would always be underground?
mind-blowing when we think Straz has already done everything possible in ksp he comes with a video like this... can't even imagine how it'll be with ksp 2
This is awesome! It also explains why I once had a ship marked as "landed" while in flight - I crashed and destroyed the root part but the rest of the ship was fine and had a control point. Getting to orbit was very difficult because neither the stock readouts nor Kerbal Engineer was telling me anything that made sense. A fun bug/glitch.
@@Stratzenblitz75 I couldn't actually do anything once on orbit of Minmus, no amount of prograde burn would change to Kerbin SOI because the conics weren't being drawn. Couldn't quicksave or leave the flight as it was "moving across the surface". Rolled back to an earlier save and did it properly.
This video is a horror movie I kept imagining being an astronaut stationed on this hollow planet, slowly unraveling the fact that you're poised above a yawning, inescapable void
from a programming standpoint, it's much easier to create a gravitational singularity than to stimulate gravity inside a planet when it's never intended for people to go there
Ok, this discovery lends itself perfectly to my head canon of Rick Sanchez "accidentally" making the Kerbals and Kerbin star system. It sounds like such a Rick move to make planets out of black holes with paper thin shielding around them lol
This goes to show how much shenanigans had to be done to get the game to perform and release. Imagine the lag if the mass was properly distributed and colliders were everywhere
This is freaking incredible! Almost 20 years after this game came out and we're STILL learning about how it works! I can only HOPE that KSP2 lives up the the HYPE!!! 🤣😂🤣
Somehow you manage to do something I thought was impossible every single time
That’s the beauty of it
I think Danny 2462 discovered this about a decade ago
I knew it was possible I make the kraken so angry he send Half of my ship there
@Nоt RiскrоII 🅥 it's something worse
YOUR DEMISE
Omggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg! Space angency pfp!
This is ridiculous and amazing. Even though you’re just exploiting a glitch, your presentation makes it feel as if you’re discovering a whole untapped area of science in the Kerbol system. The ways you did these pseudo-scientific method experiments with the probes made it a joy to watch.
In a sense, it was science, just in a different universe which doesn't matter so much to us. But I'm getting into philosophy, I guess, and there's no end to that. :)
"Fifteen hundred years ago everybody knew the Duna was red. Five hundred years ago, everybody knew Duna was flat, and fifteen minutes ago, you knew that Duna has no underground. Imagine what you'll know tomorrow."
Agent K. to Agent J., Men in Green, 1997
@@eekee6034 Yup, definitely not pseudoscience. That's proper scientific method right there.
Well it can't be pseudo, if your planet is fukin hollow!
I love the implication that Kerbals are aware of physics exploits in their universe and use them in a day to day basis
Thanks, I built most of it at 3am one night because I couldn't sleep lol
@@Stratzenblitz75 im taking that advice as a "how to git gud at ksp"
@@Stratzenblitz75 Goddamn, would take me weeks probably.
imo, the refrigeration cycle is almost an irl physics exploit if you think about it
Oh damn I did try some underground flight, but I never realized the mechanism to gift a landed state, very well done, this is pure science
Well well well...
Look who came by.
Thanks fam!
@@Stratzenblitz75 Hopefully you're not a yt bot.
To this day I remember my first time playing KSP. Or rather the frustration I had when all my plans fell apart and I completely failed to get anything working, let alone into orbit. But also the exhilarating feeling when, after I grudgingly had consumed some tutorials and howtos, I managed to get my first ship to orbit.
My biggest dopamine overdose was when I rendezvoused and docked for the first time. I’ve had KSP for almost a decade but I would usually stop playing for months after visiting a planet. I pretty much ignored the whole rendezvous aspect of the game for 5+ years. It’s kind of sad that I don’t even think about it anymore, but being able to do this makes the game way more fun.
Its amazing how powerful this game is. I will never forget my first Mun landing
@@Stratzenblitz75 me neither. I tried to use parachutes.
I have a tendency to take on overly ambitious goals, but on the occasions I manage to reach them, it's great! :D My orbital refuelling infrastructure has been the source of several rushes, beginning with my first effective mining lander.
i tried many times to land on mun but either i land at night, bad terrain, or i slam into the ground at full throttle.
17:11 dear god, it’s Brittle Hollow
As a follow-up to this idea, I’d love to see either a lone probe core with cheats reaching the singularity (no joints means it takes longer for the kraken to strike), or orbiting the singularity on a body like Tylo where drag isn’t a problem
I was thinking the exact same thing
I think the Alt-F12 cheats change a craft's state, but it would be interesting to look into exploiting the easing to ground feature. If you cheat a vessel onto/into water, it won't automatically stop easing to ground. That only stops when it touches ground, or if you click the button to stop it. You can close the cheat window without clicking the button.
@@eekee6034 I meant using cheats for infinite electricity and no overheat
@@alexsiemers7898 ah! then yes, but... i don't think you'd get closer to the singularity without air resistance, unless... hmm..if you dropped straight down with no sideways thrust, you'd go straight through it, wouldn't you? at least, i imagine you would, with an orbit of perhaps infinite eccentricity, otherwise known as a straight line. though i don't know if some coriolis force might come into play.
@@eekee6034 maybe a single ant engine (with decoupler to remove it) could be used to cancel out the planet’s rotation
"It seems the void remains at sea level pressure" is the most Night Vale-ish sentence I've heard in a long time
I did NOT expect to see a craft descending into singularity in KSP
Edit: I DID NOT expect to see a craft orbiting singularity inside a planet in KSP
WOW
Edit №2: This is the 2nd time when Stratzenblitz demonstrated that the laws of general relativity don't apply to the game
your right the game uses Newtonian Physics for all the calculations, which work really really well for the most part.
@@wChris_ That's right. I wonder if it would be even possible to implement in the game an object for which newtonian physics are not enough, like a neutron star.
Had stuff glitch trough the Mun surface a a few times, one time even an rover at the north pole.
You can get some idiotic speed this way, KSP calculate physic every .05 milliseconds or 20 times a second.
So if you get very close to the singularity you get an insane acceleration and the next time you will be far away as in out in space again. But you are moving over the surface so you can not stay on craft.
@user
There is a mini game that was produced by a team of college students as a project, which heavily exaggerates relativity in a first person walking environment. So it is definitely possible.
The newtonian physics of KSP also limits most problems to 2 body problems, with hard hand offs between spheres of influence. This makes things like Lagrange points and heliosynchronous orbits impossible, because they rely on 3 or more bodies to function properly.
One of the only space sims I know that even attempts multibody problems is Children Of A Dead Earth (good game imo).
@@hatman4818 Well there is the Principia mod which basically turns the game into an N-body physics simulation. This version of KSP is really hard and resource intensive, i can understand why they did not choose to do that.
Thank you so much for investigating this and making it so easy to understand! Not only is this glitch exploitation really hilarious, but it actually seems really useful for constructing underground infrastructure. I'm already thinking of how I could use this in my cinematics - creating an underground section of base and then masking away the background would make for some awesome shots.
Thanks! I liked your Far Future Mission to Uranus video; you've got a great eye for cinematics so I'm excited to see what you make.
@@Stratzenblitz75 Thank you!
I wonder if it would be possible to build a shell around the “singularity” of parts docked just above destruction range to contain this obvious threat to the solar system
Interested in doing this @ minmus
Next video: "Building a Black Hole Bomb in Duna | KSP 1.12.3"
It may be possible to do this on a small body like minmus or gilly
KSP lore: The planets are shells made by the ancients that contains this threat, but here we are, breaching it.......
@@Stratzenblitz75 In this one you reached ~4.3km above the planet's core I believe before breaking up, which is 1.3% of Duna's radius. If the gravity mechanics scale with planet size, if gravity is sustainable at 1.3% of a body's radius, on Minmus this radius would be 403 meters, and on Gilly it would be just 175 meters. I reckon a circular base like that would be possible, right? With a diameter of 350 meters?
The reality of the kerbol system is frightening, but an inevitable and great leap in kerbalkinds scientific accomplishment, spearheaded by its best engineering minds.
Excellent video.
Thank you! I've been really enjoying exploring the weird quirks of KSP.
Wow, that's crazy! Best glitch to exploit so far. And your presentation is impeccable :D
Just when I thought I’d seen everything in KSP… That is nuts. I am impressed.
I never thought someone could consistently surprise me that much every single time. You are a true master of your craft, weeks and months of work packed neatly into a 20 minute video that's engaging from its first to its last second. I really applaud the effort and work you put into this and it's another wonderful pice of art
Thank you! I appreciate the kind words!
Recently had some issues with a gilly lander that would bounce up on loading and end up flying in a 'landed' state, which had some weird consequences. Also, some of my favorite glitch videos involve messing with states, like "landed" on modern jool or "on the launch pad" at the surface of the sun X3 Glad to see you exploring their potential!
How do you get "on the launch pad" state on the surface of the sun? Or rather, how do I find these videos? ^.^
@@eekee6034 I think it might've been a Danny2462 or nexters lab vid, but I can't find it for the life of me. What I recall is that he somehow found a way to glitch a launch clamp holding a craft onto the sun, which enabled the state, and let him collect invalid science experiements.
@@Pacca64 Thanks!
@@Pacca64 gotcha mate! ua-cam.com/video/fL4kgyQT6n0/v-deo.html
@@Danny2462 Yay thank you ^w^
The most mind-blowing thing to me is that last part is somewhat... Real!
There are black holes, there are things orbiting it at that speeds and heights, even the IMMENSE heating of that shield - this is just what an accretion disk is
Uhh, no. They are similar, but the reasons are completely diffrent. One is physics, other is game simplification.
I feel a black hole in atmosphere would not... well, the black hole would be fine, it'd last for as long as they usually do. But, nothing else would. Any accumulated atmosphere one does have would be largely temporary.
The absurd density present in black holes does mean they can cause ridiculous increases in other phenomena, and it is so very interesting to see. All gravity does the things associated with black holes, but theirs is so strong that phenomena which can't be easily observed elsewhere are trivial to find.
@@O5MO Uhh, no, they are not completely different. The game simplifies a planet's gravity to a single point, which is literally exactly what a singularity is. All the planets are quite literally singularities with a hollow shell. The immense heat from orbiting is also almost the same, friction through the singularity's accumulated "atmosphere" vs friction through the singularity's simulated atmosphere it shares with the planet above. But they are both due to the singularity's steep gravity gradient causing incredibly high speeds through medium. I don't know why you think they are "completely different".
@@Wasabiofip i didnt say they are completely diffrent. In fact, i said they are similar. The reasons they work this way are completely diffrent though, well, maybe apart from singularity, because KSP planets do in fact have singularities in them. But atmosphere, heat and other things are very diffrent.
Way back in the early KSP days I did the calculations and figured out that for KSP planets to work, they had to have a condensed matter core --- their mass is anomalously high for their radius. But I wasn't expecting this! Given a mass of 4.5×10^21 kg, the event horizon of the Duna black hole should be about 14µm across, so sadly your probe was nowhere near it. I did do the calculation and assuming I've got it right, at 5000m above the black hole you're seeing a tidal acceleration of about 10m/s^2 over the width of your probe; I estimate it to be about two metres across. That's only about 1g, so I don't think the probe exploded due to tidal disruption. If you saw sudden unexpected heating, you could have passed through one of the polar jets.
Clearly the next thing we need is a mod which adds proper rendering for a black hole. It'd be epic.
**Edit:** fixed black hole diameter which was a factor of 1000 out.
**Edit:** put it back again because it wasn't.
Lol, I love the polar jet theory. And heck yea, proper black hole rendering for black holes would be awesome. I wonder, since the even horizon is so small though, could you even see the distortion?
Next we just need to know the extent of the time dilation on the probes
@@Stratzenblitz75 If you're going for realism (lol) then you're going to run into problems due to an entire planet's weight of atmosphere making it surrounded by a shell of pressure-hardened solid carbon dioxide, so let's just assume that Duna contains a partial vacuum. The black hole itself is probably invisible but debris raining down from the surface would most likely form an accretion disc. I can't find any references for accretion discs in very small black holes, but it seems plausible that you'd get one. Duna's rotating, so any falling matter will have the same angular momentum. The density spike as this all gets compressed near the black hole would produce a spinning plasma cloud that _should_ form a glowing accretion disc. I did the calculation for Hawking radiation and assuming I got this right it's glowing at 38K... which isn't a lot, so that won't be contributing. I think it all depends on how porous Duna's surface is.
@@Stratzenblitz75 There is a mod called "Singularity" which adds proper black hole distortion effects, it's used in a couple of planet packs.
i mean, their mass being anomalously high makes sense, because of KSP's 1/10 scale and gravity still being in normal scale
Fantastic work!
I wonder, What if you do this on an airless body like the mun or tylo and burn your engines near the center? Could you use the oberth effect to give you enough speed to punch back up through the ground without the game registering the collision?
My thoughts are that if you could make a quick burn near the singularity you could in theory come out at a significant percentage of light speed. If it’s going fast enough the games frame rate will allow a craft to pass through the terrain without registering a collision since the craft has to be inside the terrain during a frame to do that.
From there head to the stars?
Hey Cody!
I've tried this with airless worlds, and yes, you can get really close to the singularity. However, at that point the simulation starts breaking down and you get a ton of free velocity from the integration errors.
I'm working on a follow up video to explore this further!
Oh hey, it’s Cody.
He seriously orbited inside of a planet. The madladdery is insane
This felt like it was planned by NASA. I love all the "useless" redundancies that you included in the base that would probably be fully necessary in real life (but are obsolete with quicksaving).
Amazing work! The livestream was very fun!
i loved the random craft destruction
@@nile6076 I too love not knowing why it keeps exploding
This is amazing, going so far in this game doing absolutely cursed things require absolutely insane methods
Stratzenblitz in 2021: I broke KSP physics to build ramps for my bridge
Stratzenblitz 2022: I broke KSP physics to discover the forbidden truth of Duna
Don't forget he broke KSP physics to build the bridge in the first place. :)
Stratzenblitz 2023: I broke KSP physics to use the singularity of Jool to eject myself at a speed of over one million meters per second
Duna being hollow with a black hole at the centre sounds like a good plot for another Duna Attacks movie
Nah that's Brittle Hollow.
I guess my question is, how about a Kerbin sub to its core? How does water behave as you go deeper? Does it get more dense and give your craft more bouyancy? And does bouyancy help with approaching the core? Also, could bendy tech somehow be used to go deeper into Jool?
This was an awesome video. It makes sense to me why they simply programmed gravity as singularities, in theory, you should never be able to go below the surface, and modelling a point mass is so much easier than a distributed mass.
That's a great idea, I hadn't thought about using buoyancy. Theoretically, that should allow you to approach much closer to the core (as long as the physics engine behaves itself). Thanks for the idea, I'll need to try it!
To go where no one has gone before! "epic music intro"
I hope the new planets in KSP 2 have caves.
As I understand it they can't really because of the way planet meshes are made. They base it on a single altitude value, so there's no way to layer stuff in without using scenery objects placed on top. Not to say they couldn't figure something out but it's unlikely.
Interplanetary caving would indeed be awesome
@@maxv9464 many games use a similar approach and to create underground areas they put holes in the ground mesh and thread scenery objects into them
@@insu_na Oh ok, cool!
@@maxv9464 There's a mod that does add small caves
they could add caves as structures, rather than terrain
it wouldn't really go under ground, but would still be cool to explore
*Reads description*
ROCK AND STONE LAD!
18:58 The craft is considered "landed", so I think the land speed record counts :)
martin is going to love this one
You never fail to amaze me Stratzenblitz
Man I can't believe the planet Duna from the 2011 space exploration video game Kerbal Space Program™ is actually the planet Brittle Hollow from the 2019 adventure-puzzle space video game Outer Wilds™. That's crazy.
Congrats on setting the first Underland Speed Record.
For the next video, try exploring Kerbol
Thank you! Exploring Kerbol may actually be possible with the aerothermal bugs that have been discovered, I'll look into it
same. the moment I realized there was a black hole in the middle of the planet, and then he says 'theres a black hole, lets go investigate it', was spooky
This was the first mission I managed to watch live and it was really fun!
Truly exploring the unknown mysteries of the Kerbal universe.
You have my respekt, great sage.
squad make this real lore. I love this channel, because it shows actual space exploration of the unknown, in ksp, a game heavily documented.
This is your best video yet
How did I miss this one? Very impressive video as always, the aesthetics of your builds are getting better all the time too. 😎
Thats a high compliment coming from you. Thanks fam!
This feels like one of those hacking explanation videos: getting a normally impossible result from a program reliably, by combining different steps to get around limitations/checks, and learning about more and more implementation details in the process xD
Commence oil drilling operations
Ah, american kerbals
USK! USK!
American moment
🇺🇸yeehaw, bruther🇺🇸
*America intensifies*
Your videos like this one are my favourite to watch before I go to bed. It’s like a cozy little documentary of a game I love.
This makes sense. Since no one was supposed to get below the surface, having a single point where all the planets density is stored works.
Alternate title: "A Journey To The Center Of Duna" by Stratzenblitz75 Verne
Best KSP channel without any doubt. Incredible
This is the coolest KSP video I have ever seen. This is like an actual space program exploring a new universe.
"Well, that's about all I have for you."
That's more than enough! Awesome work mate!
*Mission assignment notice.*
_Next mission suggestion:_
After viewing your discovery of the black hole centers of the Kerbal system's unique hollow planets, we have garnished a question regarding the composition of its sun, and whether or not it may follow this very same example. Our inquiry would involve the creation of a "bendy physics" craft that could survive on and interact with the sun, and the creation of exploratory crafts to see the inside of the sun. We look forwards to seeing your future discoveries.
Sincerely - Omega Research Corporation.
Impressive, as usual.
Not only the creative questioning of the game's boundaries, but the engineering genious to actually boldly go where no man..... and so on.
The underground stuff is neat and all, but is really nobody gonna talk about how amazing that base looks?
The music in this video instantly reminded me of your Jool 5 infinity video. That video is still one my favourites you made after all these years.
Thank you for making it and others, and this video of course!
You are at the leading edge of engineering and science for all of Kerbalkind.
This is the greatest video in my opinion!
Next video: "Exploring a black hole inside the Kerbol"?
Stratzenblitz: "Look on the bright side, -Foehammer- KSP. The last thing everyone will expect is an aerial insertion... from underground!"
Man these skills are trully beautiful to watch, with this rp presentation it’s perfect !
Daaaaamn. Love the research and attention to detail. Marvelous job! ❤
This makes incredible amounts of sense and yet is absolutely amazing.
Gotta love this game and what you can do with it, everytime I think this game has nothing more to give you prove me dead wrong
Man, this is absolutely amazing. I've been playing ksp from the earliest days and I never expected that something like this is possible. My mind is blown.
Haha, YT directed me to this video straight from Orion splashdown livestream. Not even mad. I wonder how many people got sent here the same way ^^.
As for the video, KSP was out for what? 11 years now. And people still find new cool things to do in it. Hats off to you. That took a lot of effort to prototype, dessing and execute.
Watching the stream for this was insane lmao, forever autostrutting
Indeed
There's a gap at Eve's South Pole where you can just boat into the "underworld". It seems the "splashed down" state is what kept me alive. But I never imagined all the "science" you applied here. Amazing as always!
Thanks! I knew about the gap in Eve's south pole and I have tried to fly through it (without success). Never thought about boating into it though: nice work finding that!
This is legendary. I knew nothing about this except the fact that atmosphere pressure doesn’t increase underground and maybe the gravity thing
ROCK AND STONE BROTHER
This is by far is the most interesting mind melting KSP video I have ever seen.
Your vids just keep getting more incredible!
What's even more striking is that the way you see the "planet" and the sky as you approach the center is eerily similar to how you would see a (supermassive) black hole as you get closer to it. Once you hit the event horizon, the black hole will actually appear "in front" of you (if you were going straight towards it), barely taking half of your entire 360 view. This is because of insane light aberration mixed with the diffraction of light, all the light is coming from the direction you are going at, so when you hit the event horizon the black hole will still appear "in front" of you, as if you never even entered it. It's only when you get close to the singularity that the black hole takes half of your entire view, but by then you've probably been spaghettified into a string of molecules (molecules wouldn't be taken apart by gravity because gravity is much weaker than the electromagnetic force on a molecular scale, even a black hole can't take apart a molecule, and even less an atom because of the strong force). This is fascinating.
Space, Sky, Surface, Seas, and Strata. The five wonders of KSP finally tackled.
Edit: All planets act like that, once you go below the surface collider, there’s nothing else down there. In Kerbin, Eve, and Laythe’s case, its an infinite ocean.
Would be cool to explore the ocean and I'm glad I have the game
I remember exploring undergrounds back in 2012-2014, when there were so many gaps in the mapping of planets that you could land basically anywhere and would find a gap. Most of them was actually tiny but some were big enough for kerbals or even small crafts to fit in. There was also especailly a lot of these on Minmus for some reason. It was kinda fun to drop inside of them and try to get out without touching the surface or you'll instantly die or crash.
Stratzenblitz75 casually achieving underground speed record.
This is fascinating - and well researched and executed. The next obvious question to me relates to landing leg/wheel kraken drives and to use this to determine whether their power levels scale proportionally to the increase in gravity: if so then they might offer an ability to descend more smoothly even closer towards the core (or else may just spontaneously explode from the internal pressures!).
This is beyond amazing. Truly exploring the world and learning its secrets that even the developers never conceived of!
So happy whenever you release one of these!
I sure freaking hope that you live-stream KSP 2 so we can all watch you LITERALLY play as if you were a child in a sandbox
Heck yea, KSP 2 day one livestreams are planned!
one of the most entertaining videos ive seen of KSP
oh my god this is too cool... I never thought I would see 'technical ksp' the same way other games have technical research put into them
I honestly wouldn't be surprised if you found a way to exploit real life physics bugs or something. This man is insane
Nuclear power & bombs exploit a real-life physics bug. ;) Quantum tunnelling looks just like a bug because particles do stuff at far lower energy levels than they should be capable of.
@Abraham Johnathan Yes indeed! :) I believe in a Creator, and, well, there's this scripture: "He has made everything beautiful in its time. He has even put eternity in their heart; yet mankind will never find out the work that the true God has made from start to finish." -- Ecclesiastes 3:11 In a sense, science will never end.
@@eekee6034 that’s a beautiful verse, thank you for sharing it!
Fun livestream, and now its here!
KSP being explored in the most Kerbal of ways. This is amazing
Ok, insane as always, but I need to know... could you theoretically use a mining drill on a flying craft down there, since the drill head would always be underground?
Here we are on the brink of KSP 2 and players like you are still finding new ways to explore the original!
Please Don't Feed The Kraken!
Great video, btw 😄
mind-blowing
when we think Straz has already done everything possible in ksp he comes with a video like this... can't even imagine how it'll be with ksp 2
The best youtuber returned!
Watching Stratz start simple and get more and more complex and ingenious as he does R&D is pretty cool tbh
You are an absolute genius with this game dude
This is awesome! It also explains why I once had a ship marked as "landed" while in flight - I crashed and destroyed the root part but the rest of the ship was fine and had a control point. Getting to orbit was very difficult because neither the stock readouts nor Kerbal Engineer was telling me anything that made sense. A fun bug/glitch.
Thanks! And nice work finding the bug and flying it through!
@@Stratzenblitz75 I couldn't actually do anything once on orbit of Minmus, no amount of prograde burn would change to Kerbin SOI because the conics weren't being drawn. Couldn't quicksave or leave the flight as it was "moving across the surface". Rolled back to an earlier save and did it properly.
This video is a horror movie
I kept imagining being an astronaut stationed on this hollow planet, slowly unraveling the fact that you're poised above a yawning, inescapable void
I wanna make a ‘The Core’ reference, but I can’t think of anything clever.
Very nicely done!
Cant wait to see that in ksp 2
Some dev: let’s just use this model that is easy to code and works above the surface
Him: LORE!!!!!!
I left in-game exploration before reach this depth. Amazing experiment.
If you went to somewhere without an atmosphere, could you reach the singularity?
You just get flung out at several times the speed of light, if your craft survives the acceleration
@@jonne7725 Yes, i remember that in a Danny video
Even better, you could set up an orbit just below the surface 😀
@@Tomaskom
Imagine the delta V needed to get circle orbit right above core
With atmosphere is much easier
@@littlesneez9002 Which video was that?
from a programming standpoint, it's much easier to create a gravitational singularity than to stimulate gravity inside a planet when it's never intended for people to go there
Ok, this discovery lends itself perfectly to my head canon of Rick Sanchez "accidentally" making the Kerbals and Kerbin star system. It sounds like such a Rick move to make planets out of black holes with paper thin shielding around them lol
Somehow this guy makes a 2 hour good-feeling video in like 20 minutes
Impressively clear!! Great stuff.
the base hanging over the giant black emptiness makes me so anxious
You really should add bloopers at the end of craft explosions and funny sentences. We wouldn’t want to forget that Hugh Jazz made an appearance!
This goes to show how much shenanigans had to be done to get the game to perform and release. Imagine the lag if the mass was properly distributed and colliders were everywhere
This is freaking incredible! Almost 20 years after this game came out and we're STILL learning about how it works! I can only HOPE that KSP2 lives up the the HYPE!!! 🤣😂🤣
10 years
Nice! A new video I've been waiting